vitamin b12 injections cause black stool If you notice your poop is , it might be due to something as simple as a change in your diet or a new medicine you're taking. Sometimes, though, it's a Black Stool Sign: 7 Serious
Description
Accessed 4/16/2021, NIH

Your personal dosage chart must be prescribed and supervised by a licensed healthcare professional
Actually, upon looking very closely, there is something in it, but it is hard to see because there is so little of it
If you are taking similar nutritional supplements simultaneously can lead to a vitamin overdose or other side effects

When bismuth reacts with trace amounts of sulfur in your saliva and digestive tract, it creates bismuth sulfide, a black substance that can stain both your tongue and your stool
But what if you dont have a reliable source of B12 in your vegan diet and still dont have any of these symptoms
